Finding the Fourth Proportional to 3,657.09, 5,485.02 and 1,059.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,657.09 : 5,485.02 = 1,059.42 : x
2. Step 2: Convert to fraction form
   3,657.09/5,485.02 = 1,059.42/x
3. Step 3: Cross multiply
   3,657.09x = 5,485.02 × 1,059.42
4. Step 4: Simplify right side
   3,657.09x = 5,810,939.89
5. Step 5: Solve for x
   x = 5,810,939.89/3,657.09
6. Step 6: Final answer
   x = 1,588.95